Owling in Páramo

Now that we’re into April, this breeding season’s owling is well into its swing. Owling is the name our group gives to the activity of putting up nest boxes and monitoring them for these magnificent birds. In the UK, Barn Owls, Little Owls and Tawny Owls breed inside pre-existing cavities, such as tree hollows and outbuildings, but all will breed in nest boxes. Short-eared Owls are ground nesters and Long-eared Owls prefer to breed in old Magpie and Crow nests.

I started owling in 2006 and have been hooked ever since. I get immense joy seeing owls up close, but am predominantly driven by a desire to provide additional nest sites for them, to ring any chicks, and to contribute to the BTO’s nest record scheme. Whilst ideally we’d like all owls to breed in natural cavities, research has shown that a shortage of suitable nest sites can limit owl numbers. Furthermore, at some sites, especially in modern farm buildings, nest boxes can provide a more secure nest site compared with semi-exposed sites without vegetation.

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The Little Owl in Britain

Little Owls are amazing birds. They’re only eight inches tall, yet they ooze so much personality. Their quirky behaviours are utterly charming and a sheer joy to watch. Many people are surprised to learn that this much loved owl is not native. Landowners successfully introduced the Little Owl into England during the 1880s; these were brought over from mainland Europe to control ‘garden pests’. After its initial and rapid spread across England and Wales, the Little Owl started to decline from the late 1930s. More recently, this decline has accelerated, with numbers down by 64% in 25 years.

The Little Owl has declined across parts of its native range too, and is a Species of European Conservation Concern. This decline has been linked with agricultural intensification, urbanisation, traffic collisions, predation by mammals and raptors, and low juvenile survival rates. We’re unsure why the Little Owl is declining here, but it’s likely to be for a combination of reasons.

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